145  North  Front  St,  Columbui 


i 


Moistair ! 


a  Vital  Health  Essential  of  the  Heating  and  Ventilating 

System  for  the  Home 


To  deliver  into  your  home  pure,  warm  air,  free  from  dust, 
gas,  and  smoke,  is  not  sufficient.  Health,  comfort,  and 
life  itself  are  dependent  on  moisture.  The  principle  of 
gravity  warm-air  heating,  as  represented  in  the  Round 
Oak  Moistair  Heating  System,  is  undoubtedly  the  nearest 
to  nature’s  way  of  heating  and  ventilating,  of  any  mechan¬ 
ical  device. 


Exhaustive  laboratory  tests  emphasize  the  supreme  im¬ 
portance  of  maintaining  a  sufficient  amount  of  moisture  in 
the  air,  also  that  it  is  quite  as  important  to  freely  circulate 
the  air. 

Any  heating  system  that  fails  to  accomplish  these  two  im¬ 
portant  purposes,  is  not  only  inefficient,  but  a  positive  and 
constant  menace  to  the  health  and  comfort  of  the  family, 
as  well  as  to  the  finish  of  the  furniture  in  the  rooms. 

In  bringing  air  into  contact  with  a  heated  surface,  its  ca- 


IVhat  Others  Say 


Carl  P.  Jones,  Otsego,  Mich.,  says: 

"The  Round  Oak  Moistair  Heating  System,  which 
I  have  in  my  home,  is  certainly  all  that  is  claimed  for  it. 
The  Moistair  System  was  installed  in  accordance  with  plans 
furnished  by  your  engineering  department  and  now  provides  us 
with  a  reliable,  steady  flow  of  heat.  I  find  that  same  operates 
with  much  less  attention  and  greater  economy  than  any  heating 
system  I  had  used  before. 

"  In  the  purchase  of  the  Moistair  System  one  receives  a  heap¬ 
ing  measure  of  convenience  and  service,  or  as  some  one  said, 
'  The  memory  of  quality  remains  long  after  the  price  is  forgot¬ 


ten. 


P.  W.  Schock,  Blue  Springs,  Nebr.,  says: 

"I  have  used  one  of  your  Round  Oak  Moistair  Heating 
Systems  for  fourteen  years,  and  am  satisfied  with  it  in  every  par¬ 
ticular.  Have  never  had  to  replace  any  grates  and  the  heater  is 
in  fine  condition  to-day ;  nor  have  I  replaced  any  of  the  fire  box, 
and  have  never  been  bothered  with  any  smoke,  dust,  or  gas. 
Could  recommend  it  to  anybody  in  need  of  a  heater.” 

August  Rasmas,  Conrad,  la.,  says: 

"I  am  pleased  with  the  Round  Oak  Moistair  Heating 
System  bought  of  your  agent.  It  is  a  powerful  heater,  a  great 
saver  of  fuel,  and  can  be  controlled  just  like  a  Round  Oak  Stove.” 


pacity  for  holding  moisture  is  increased.  The  amount  or 
percentage  of  moisture  in  the  air  in  any  room  is  called  the 
relative  humidity,  and  is  measured  by  the  use  of  a  little 
instrument  called  the  hygrometer.  The  use  of  this  instru¬ 
ment  has  enabled  the  Round  Oak  Folks  to  determine  how 
much  moisture  should  be  added  to  the  air,  during  the 
process  of  heating,  in  order  to  safeguard  health  and  com¬ 
fort.  This  the  Round  Oak  Moistair  Heating  System  does 
automatically. 

The  Round  Oak  humidifier  is  a  part  of  the  regular  equip¬ 
ment  of  every  Round  Oak  Moistair  Heating  System.  It 
is  one  of  the  first  things  to  look  for.  This  is  a  part  of  your 
insurance  policy  of  health  and  comfort.  Through  carefial 
experimenting  the  most  favorable  size  and  location  for  the 
water  pan  has  also  been  worked  out  scientifically  by  the 
Round  Oak  Folks. 

Compare  this  complete  equipment,  from  the  standpoint  of 
satisfactory  humidity,  with  the  ordinary  furnace  or  steam 
or  hot-water  apparatus.  You  will  discover  (by  the  use  of 
a  hygrometer),  with  these  latter,  that  the  percentage  of 
moisture  is  far  below  that  standard  demanded  by  health 
and  comfort.  Verify  this  from  your  family  physician  or 
write  the  Round  Oak  Folks  for  detailed  explanation  and 
proof,  cheerfully  sent  without  expense  or  obligation. 

Not  only  does  the  maintaining  of  the  proper  percentage 
of  moisture  safeguard  health  and  comfort,  but  it  is  one  of 
the  factors  that  assure  fuel  economy.  Rooms  heated  by 
the  Round  Oak  Moistair  Heating  System  to  a  tempera¬ 
ture  of  68  degrees,  are  quite  as  comfortable  as  those  heated 
to  75  degrees  by  the  ordinary  furnace  or  steam  or  hot- 
water  plant,  where  the  percentage  of  humidity  is  low. 

Note  carefully  that  this  difference  represents  not  only  a 
material  saving  in  fuel,  otherwise  required  to  raise  the  tem¬ 
perature  these  seven  degrees,  but  it  is  a  positive  aid  to 
health  and  comfort. 

This  cannot  be  realized  by  the  installation  of  the  average 
furnace  or  by  any  ordinary  method,  using  radiators. 

It  will  be  realized  by  the  correct  installation  of  the  Round 
Oak  Moistair  Heating  System,  under  the  direction  of  our 
accredited  representatives. 

Engineering  and  Research  Department 
OF  THE  Round  Oak  Folks. 


The  Round  Oak  Folks  Make  Good  Goods  Only 
Stoves  •  Ranges  *  Heaters 


The  ^^Bpund  Oak  iMoistair 
Heating  System 


^Manufactured  by 


The  Beckwith  Company 

‘Dowagiac,  Michigan 


Copyright,  1918,  by  The  Beckwith  Company 


This  system  is  within  your  buying  power,  yet 
millionaires  cannot  secure  a  more  luxuriously 
comfortable,  healthfully  and  economically 
warmed  home.  The  evidence  follows 


Nature’s  Own  Way 

WHEN  NATURE  planned  to  provide  heat  for  this  old  world, 
she,  in  all  wisdom,  realized  that  heat  alone  would  be  injurious 
to ‘vegetable  and  animal  life.  Hence  together  with  heat  she  pro¬ 
vided  moisture  and  ventilation!  She  gave  us  the  sun,  that  great  warm- 
air  heater.  She  then  distributed  the  various  bodies  of  water  on  the  earth’s 
surface,  so  that  "Nature’s  heater”  would  have  a  water  pan  with  which 
to  supply  us  with  moisture.  The  next  step  was  ventilation;  so  breezes 
were  created  that  we  might  have  fresh  air  to  breathe.  Neither  animal 
nor  vegetable  life  could  live  with  just  heat.  Moisture  and  ventilation 
are  positively  necessary. 

So,  in  considering  the  healthful  warming  of  your  home,  what  better  way 
could  there  be  than  Nature’s  way?  And  wholly  in  accordance  with  Na¬ 
ture’s  way  is  the  correct  installation  and  use  of  the  Round  Oak  Moistair 
Heating  System. 

Here  Is  Convincing  Evidence 

"  It  is  well  worth  while  for  every  man  and  woman  to  understand  that 
an  abundance  of  fresh  air  is  not  merely  theoretically  a  good  thing, 
which  is  to  be  accepted  if  it  comes  in  his  way,  but  that  it  is  a  necessity 
for  the  preservation  of  health  and  happiness,  and  that  it  is  worth  tak¬ 
ing  special  pains  to  procure.  It  is  also  important  that  those  who  form 
and  direct  public  opinion  on  this  subject— physicians,  architects,  en¬ 
gineers  clergymen,  teachers,  school  trustees,  and  legislators  — should 
give  more  attention  to  this  subject  than  they  have  heretofore  done,  and 


should  look  to  it  that  the  buildings  which  they  plan,  erect,  or  manage, 
are  so  constructed  and  arranged  that  no  one  should  poison  himself  or 
others  by  the  air  which  he  expires.”  —John  S.  Billings,  A.  M.,  M.  D., 
in  "  Ventilating  and  Heating.” 

Rouse  'yourselves !  Consider  that  God  has  given  us  an  atmosphere  of 
pure,  salubrious,  health-giving  air— ventilate  your  houses  I  ”  —  Professor 
A.  J.  Downing,  in  “Rural  Essays.” 

"  Under  no  circumstances  should  a  room  or  an  office  be  heated  exclu¬ 
sively  by  direct  radiation  from  exposed  hot-water  or  steam-heated  radi¬ 
ators  or  pipes.  It  is  one  of  the  most  unhealthfiil,  killing  systems  in  ex¬ 
istence.”— Lewis  W.  Leeds,  Consulting  Engineer  of  Ventilation  and 
Heating  for  United  States  Treasury  Department,  in  "Proceedings  of 
Franklin  Institute.” 


"  I  have  noted  that  direct  steam  and  hot-water  heating  have  an  un¬ 
favorable  effect  upon  health,  and  this  is  particularly  marked  in  diseases 
of  the  lungs,  throat,  and  respiratory  passages.  I  attribute  this  unhealth¬ 
ful  condition  to  the  lack  of  proper  ventilation  and  moisture  in  rooms 
thus  heated.  Living  rooms  should  be  heated  by  pouring  untainted 
warm  air  into  them,  and  in  no  other  way.”  — C.  H.  Shearer,  M.  D. 


The  Round  Oak  Moistair  Heating  System  not  only  generates  pure, 
warm,  moist,  health-giving  air,  but  freely  circulates  and  provides  an 
ever-changing  atmosphere  in  every  room.  Compare  this  super-service 
with  any  other  system  of  home  warming. 


Engineering  Department,  The  Beckwith  Company. 


A  Frank  Talk  with  You  on  That  Very  Important  Subject,  What  System  of  Heating 

Is  Really  Superior? 


The  comfort  and  health  of  yourself  and  those  entrusted  to  your  care, 
are  of  'vital  importance 

In  this  relation  perhaps  there  is  no  greater  influence  than  your  heating 
equipment. 

You  owe  it  to  yourself  to  have  the  most  healthful,  comfortable,  dur¬ 
able,  and  efficient  heating  system  produced. 

How  may  you  know  when  you  have  discovered  this  system?  That  is 
the  question. 

You  will  readily  agree  that  this  perfected  system  should  represent  a  good 
business  investment;  should  add  to  the  value  of  your  property  more 
than  the  amount  represented  in  its  purchase;  should  deliver  pure,  moist, 
ever-changing  air,  free  from  dust,  smoke,  and  gas;  should  circulate  the 
air  freely  ana  rapidly;  should  be  perfect  in  control,  yet  simple  to  oper¬ 
ate;  should  be  durable;  should  be  economical;  should  burn  all  standard 


fuels  suitable  for  domestic  heating  plants;  should  be  cleanly;  should 
be  sanitary. 

These,  and  no  less,  should  or  could  satisfy  your  demands. 
cAll  these  you  have  a  right  to  demand.  JVe  propose  presently  to  show  that  you 
'will  secure  all  these  in  the  selection  of  the  Round  Oak  Moistair  Heating  Sys¬ 
tem,  installed  in  the  ‘^und  Oak  "way. 

You  will  not  accept  this  statement  without  detailed  proof.  Too  much 
is  at  stake  to  hope  or  guess  that  any  system  will  measure  up  to  this 
standard,  without  clear  and  definite  proof. 

That  is  why  you  are  asked  to  read  carefully  the  following  explanation 
of  this  equipment  —  then  examine  the  system  itself. 

Your  best  judgment  will  then  place  your  unqualified  O.  K.  on  this 
system,  and  you  will  have  one  installed,  we  believe,  this  season.  Then 
you  will  know  the  happy  combination  of  a  good  business  investment, 
together  with  health  and  comfort 


Robert  E.  Wilkinson,  Kenosha,  Wis. 


"It  gives  me  great  pleasure  to  inform  you  that  the  Round 
Oak  Moistair  Heating  System  you  installed  in  my  home  three 
years  ago,  has  proved  eminently  satisfactory,  it  having  done  even 
more  than  you  claimed  for  it,  my  coal  bill  having  been  reduced 
about  one-third.” 


Good  Name  Is  Rather  to  Be  Chosen” 

You  are  strongly  influenced  by  the  reputation  of  the  articles  you  buy, 
so  for  safety’s  sake  you  preferably  choose  the  ones  with  which  you  are 
familiar.  Naturally  you  question  an  unknown  brand. 

In  the  stove  world,  the  Round  Oak  enjoys  an  enviable  position.  It  has 
been  copied,  both  in  name  and  similarity  of  construction.  For  more  than 
two  generations  the  original  high  standard  has  been  jealously  maintain¬ 
ed,  both  in  quality  of  material  and  workmanship,  so  that  to-day  it  is  still 
conceded  to  be  supreme.  Perhaps  you  were  raised  beside  one  — certainly 
some  of  your  friends  have  told  you  of  its  excellent  features. 

The  heating  system  bearing  this  name,  and  produced  in  the  same  found¬ 
ry,  must  measure  up  to  the  same  high  standard. 

Y ou  no  doubt  feel  confident  of  its  merits  before  you  examine  its  many 
exclusive  improvements;  however,  you  are  not  asked  to  let  this  impor¬ 
tant  factor  determine  your  choice.  Let  only  the  genuinely  superior  ad¬ 
vantages  of  the  system  itself  convince  you. 


''Rage  2 


Water  Pan 

Placed  just  right; 
humidity  controlled 

Automatic  Humidifier 
Insures  constant  and  ample 
humidity— safeguards  health 
Outside  the  casing. 


Shaker  Door 

Construction  assures  proper 
position  of  grates  — always 

Ash-Pit  Door 

Ground  and  fitted  gas-tight  to 
doorframe- cast  on 

Ash-Pit  Draft 

Stimulates  Combustion 

Ash-Pit  Sprinkler 

Eliminates  dust  in  caking  out 
ashes  — promotes  better  combus¬ 
tion— helps  prevent  clinkers 

Cast  Lip 

Holds  heater  in  position 

Fire  Travel 

inside  the  casing  extremely  long 
and  forces  a  very  powerful 
radiation  of  heat  -mini¬ 
mizing  waste 


One-Piece  Horseshoe 
Radiator 

Permanently  tight 

Clean-Out  Doors 

Readily  accessible  and  ground 
gas-nght 

Three-Ply  Casing 

Minimizes  friction  inside  of  cas¬ 
ing  and  minimizes  loss  of-hcat 
by  radiation  into  basement 

Braced  at  Every  Point 

Never  requires  resetting 

Seamless  Ash  Pit 

Single-piece  casting— no  leakage 
of  air  possible  — hmds  water 

Alignment  Device 

Heater  requires  no  cement 
CO  line  up 

Base  Ring 

Cast  in  one  piece— supports 
heater— assures  free 
passage  of  air 


Inside  Inverted 
Cone  Deflector  ; 

(and  heat  insulator)  ^ 
Distributes  warm  moist  air  to  , 
pipes  equally  < 


-  Casing  Top 


Casing  Collar 


Direct-Draft  Damper 

Fitted  permanently  gas-tight 


Direct  DamperHandle 

Used  when  starting  the  fire  or 
putting  in  fresh  fuel 


9K 


Smoke-Pipe 

Collar 

Cast  iron— indestruc¬ 
tible  and  adjustable 
to  four  positions 

Check  Draft 
Cast  iron— ample- 
efficient— ground  face 

Cast-Iron  Braces 

Riveted  to  boiIcr-iron 
body— a  "supersafety” 


All  Three  Flues 

Fitted  over  slip  joint-gas-tight 
—  constitute  longest  fire  travel 
—all  inside  the  casing 

Entire  Flue  System 

Suspended  from  cast  one-piecc 
cop— expansion  does  not  aiicct  it 


Fire  Pol 

That  is  extra-deep  and  straight 
-mightily  efficient 


Main  Top 

A  one-piccc  casting  that  rums 
the  flame  over  solid  shoulders, 
instead  of  over  joints  — perma¬ 
nently  dust-  and  gas-tighi 


Oversize  Combustion 
Chamber 

Full  size  to  the  top 


Extra-Large,  Double 
Feed  Doors 

Ground  and  fitted  gas-tight 


Hot-Blast  Lining 
and  Air  Intake 

Bums  gases  in  soft  coal  — 
aids  combustion 


4"  "  ' . . .  Casing  Ring 


Doorframes 


Cast  on  — not  bolted  on— perma¬ 
nently  prevents  leakage  of  eas, 
smoke,  and  oust 


An  X-Ray  View  of  the  Round  Oak  Moistair  Heating  System 

This  illustration  shows  the  many  exclusive  points  of  advantage  offered  by  the  Round  Oak  Moistair 
Heating  System.  The  colored  arrows  show  the  long  fire  travel  —  one  of  the 
four  positive  Round  Oak  economy  features 


A  Generation  of  Experience 

Tor  more  than  a  generation  the  Round  Oak  Folks  have  produced  this  sys¬ 
tem,  and  each  succeeding  year  has  seen  some  progressive  improvement. 

For  more  than  a  generation,  this  system  has  shown  a  continuous  ad¬ 
vancement  toward  the  standard  of  perfect  efficiency. 

Some  years  ago,  to  'verify  the  tests  and  experiments  of  their  heating  en¬ 
gineers,  several  Round  Oak  Moistair  Fdeating  Systems  were  placed  in 
the  laboratories  of  one  of  the  leading  universities  of  America,  and  sub¬ 
jected  to  a  series  of  exacting,  extended,  and  impartial  tests. 

Only  one  improvement  was  suggested,  and  that  a  very  minor  one.  This 
was  corrected,  and  to-day  this  system  stands  approved,  not  only  by  its 
more  than  80,000  users,  not  only  by  the  Engineering  Department  of 
the  Round  Oak  Folks,  but  by  many  of  the  recognizee!  leading  heating 
engineers  of  America. 

We  ask  you  to  pass  your  personal  judgment  on  this  system  only  when 
you  have  made  a  careful  personal  investigation  of  the  system  itself. 

Immediate  and  Continuous  Economy 

Proved 

We  propose  to  prove  first,  positive  fuel  economy  over  other  heating  systems. 
There  are  four  known  ways  of  saving  fuel: 

First,  is  air-tight  construction.  In  the  course  of  time,  the  ordinary  heater 
leaks  air  below  the  fire.  You  can  no  longer  control  the  fire,  and  when 


W.  F.  White,  Walton,  N.  Y. 

"About  seven  years  ago  I  purchased  a  Round  Oak  Heating 
System  and  installed  it  in  my  home.  It  has  given  perfect  satis¬ 
faction  in  every  way.  It  is  a  powerful  heater  and  yet  economical 
in  fuel.  I  have  used  all  grades  of  coal  from  pica  to  furnace,  with 
good  results. 

"I  would  not  exchange  it  for  any  other  heating  system  I 
have  ever  seen. 

"  My  house  has  i4  rooms,  all  ot  which  can  be  heated  with 
ease.  Even  in  the  coldest  weather  the  drafts  are  closed  most  of 
the  time.  I  regard  warm  air,  when  properly  installed,  superior  to 
steam  or  hot  water. 

"  Your  heater,  when  a  sufficiently  large  one  is  used,  enables 
one  to  keep  a  very  uniform  temperature,  both  day  and  night, 
and  the  location  of  the  water  pan  insures  moist  air  in  the  rooms, 
which,  with  the  good  ventilation  afforded  by  the  outside  air 
pipes,  makes  it  summer  all  the  time.” 


you  cannot  control  the  fire,  certainly  you  cannot  save  fuel.  It  is  certain 
that  the  Round  Oak  one-piece  ash  pit,  which  has  no  joint,  will  give 
you  permanently  better  control  of  the  fire  than  the  jointed  ash  pits  of 
other  constructions.  Two-piece  ash  pits  always  in  time  open  up.  With 
the  Round  Oak  one-piece  —  never!  Carefully  investigate  this  claim 
and  see  for  yourself  wny  the  Round  Oak  assures  permanent  control. 
This  means  a  continuous  saving  in  fuel  because  of  the  continuous  con¬ 
trol  of  the  fire. 

The  second  way  to  save  fuel,  is  to  secure  complete  combustion.  Com¬ 
plete  combustion  means  the  preventing  of  unburned  coal  from  going 
through  the  grates,  and  unburned  gases  from  going  out  of  the  chimney. 
The  deeper,  straighter  fire  pot  and  improved  Round  Oak  grates,  pre¬ 
vent  unburned  coal  from  getting  into  the  ash  pit.  The  Round  Oak 
ring  hot  blast,  over-sized  combustion  chamber,  and  longer  fire  travel, 
prevent  the  unburned  gases  from  going  out  of  the  chimney.  A  series 
of  tests  made  by  Prof.  John  R.  Allen,  formerly  of  the  University  of 
Michigan,  showed  that  the  Round  Oak  Moistair  Heating  System  has 
a  combustion  efficiency  equal  to  the  results  obtained  in  the  most  mod¬ 
ern  of  Edison  power  plants.  Such  results  are  absolutely  impossible  with 
the  ordinary  heating  system.  Bear  in  mind  that  the  Round  Oak  bums 
all  fuels  successfully  and  economically. 

The  third  way  of  saving  fuel,  is  by  the  more  complete  radiation  of  heat 
inside  the  casing.  The  Round  Oak  Moistair  Heating  System  possesses 
a  supremely  effective  radiation  surface  above  the  grate  line.  There  is  a 
powerful  radiation  of  heat  from  the  deep,  narrow  fire  pot,  and  the  over¬ 
sized  boiler-iron  combustion  chamber  will  radiate  more  heat  from  the 
same  amount  of  fuel  than  the  ordinary  construction,  particularly  the 
pinched-up  combustion  chamber  of  the  average  warm-air  heater.  As  the 
heat  is  carried  down  the  diving  flues,  around  the  horseshoe  radiator,  and 
up  the  flue  at  back,  there  is  a  longer  and  more  powerful  radiation  than 
is  possible  with  the  horizontal  fire  travel  of  the  standard  heater.  Notice 
the  tremendous  amount  of  radiation  assured  by  trapping  the  heat  be¬ 
tween  the  dome  and  horseshoe  radiator.  The  whole  combustion  cham¬ 
ber  is  put  under  pressure.  This  greater  efficiency,  with  the  same  amount 
of  fuel,  insures  an  increased  amount  of  heat  being  radiated  into  the  cas¬ 
ing,  and  less  up  the  chimney. 

The  fourth  way  of  saving  fuel,  is  accomplished  by  the  Round  Oak  au¬ 
tomatic  humidifying  system.  Not  only  is  humid  air  much  more  health¬ 
ful  than  dried-out  air,  but  health  authorities  agree  that  68  degrees,  with 
proper  humidity,  is  quite  as  comfortable  as  75  degrees  of  dried  heat.  It 
logically  follows  that  the  saving  made  possible  by  the  Round  Oak  hu¬ 
midifying  device,  which  would  otherwise  be  required  to  raise  the  tem¬ 
perature  these  eight  degrees,  represents  a  material  saving  in  fuel  and 
the  conservation  of  health. 

Now,  when  we  can  save  you  fuel  in  each  of  these  ways,  every  day  that 
you  have  a  fire  in  your  heater,  and  when  you  consider  that  you  buy  a 
heater  only  once,  while  you  use  fuel  every  day  you  have  a  fire  in  it, 
certainly  the  heater  that  eventually  saves,  is  a  better  investment  than 
the  lighter  and  smaller  one  that  costs  a  little  less  to  buy,  but  much 
more  than  this  difference  to  operate. 

When  the  Round  Oak  will  save  you  money  in  each  of  these  four  ways 
named,  and  when  with  its  greater  weight  it  will  outlast  two  or  three  of 
the  lighter  heaters,  why  buy  trouble  when  you  can  buy  satisfaction? 

Notice  in  the  interesting  pages  to  follow  that  the  construction  of  our 
heating  system  substantiates  all  of  these  claims.  Examine  carefully  all 
other  available  systems,  for  you  are  to  judge. 

Yet  this  vital  proof,  while  perhaps  sufficient  to  determine  your  choice, 
will  be  backed  by  further  evidence. 

Durability 

Wherever  extra-hard  usage  comes,  such  as  the  ash  pit,  fire  pot,  mam 
top,  etc.,  the  metal  used  is  pure,  blended  Michigan  and  Southern  sil¬ 
very  iron,  famous  for  its  strength  and  durability.  This  superior  mix- 


^Page  4 


ture  is  used  by  Makers  of  Good  Goods  Only.  The  detailed  description 
of  the  Round  Oak  Moistair  Heating  System  explains  to  you,  piece  by 
piece,  permanent  durability. 

W e  invite  your  attention  to  one  other  factor,  which  completes  the  proof. 
Where  opportunity  permits,  in  view  of  increased  radiation,  you  will 
discover  that  copper-fused  boiler  iron,  extra-thick,  is  employed. 

These  two  metals  are  always  joined  gas-tight  for  life,  like  the  body  of 
the  good  old  Round  Oak  stove. 

So  you  find  here  a  happy  union  of  service  and  positive  and  permanent 
durability.  Isn’t  this  exactly  as  you  would  have  it? 

Convenience 

One  Regulator  t  •  t  •  t  i  r 

In  practice  there  is  only  one  drart  to  op¬ 
erate.  The  ash-pit  or  stimulating  draft, 
and  the  check  draft  located  in  the  cast  pipe 
collar,  areconnected  with  thechain  regula¬ 
tor,  illustrated  herewith,  and  are  easily  op¬ 
erated  from  the  room  above. 

The  direct-draft  damper,  located  in  the 
main  top  and  illustrated  on  page  3,  is  reg¬ 
ulated  by  a  handle  extending  through  to 
the  front  of  the  heater,  and  is  usecT only 
when  starting  a  fire  or  when  putting  on 
fresh  fuel.  Note  the  simplicity  and  con¬ 
venience  of  operation.  The  grates  are  all 
operated  by  gears,  and  a  flat  side  is  always 
against  the  fuel.  They  are  easily  cleaned 
from  either  opening  in  the  ash-pit  door. 

Nothing  complicated  in  operating  this 
system.  A  child  can  run  it  successfully. 

Cleanliness  Is  Assured 

Y  ou  will  presently  read  the  detailed  proof  of  gas-tight  construction,  also 
the  certainty  of  the  cleanly  removal  of  ashes.  No  dust,  dirt,  smoke, 
gas,  or  soot  possible  in  the  home  or  basement,  where  the  Round  Oak 
Moistair  Heating  System  is  installed.  Will  you  demand  this  feature 
in  the  system  you  are  going  to  select? 


Health,  the  Biggest  Thing  of  All, 

has  already  been  suggested  from  the  foregoing  description.  Unless  the 
air  delivered  by  your  heating  system  is  pure,  warm,  moist,  and  ever- 
changing,  free  from  smoke,  gas,  and  dust,  you  cannot  enjoy  perfect 
health. 

The  good  housewife  would  justly  complain  were  the  household  furni¬ 
ture  to  chip  and  crack,  due  to  the  dryness  of  the  air,  or  the  children 
grow  pale  and  sickly,  or  the  plants  dry  up  and  die.  Yet  with  almost 
every  other  system  this  very  condition  would  exist. 

We  draw  your  attention  at  this  time  to  the  article  on  the  inside  back 
cover,  which  is  authentic. 

Have  you  ever  noticed  the  dry  surface  of  the  skin,  and  the  parched  look 
characteristic  of  people  living  in  steam,  hot-water,  and  furnace-heated 
homes?  Do  you  ever  remember  of  song  birds  and  plants  thriving  un¬ 
der  these  conditions? 

The  reason  is  plain  — they  are  handicapped  by  the  small  percentage  of 
moisture  in  the  air.  The  air  will  absorb  moisture  from  all  available 
sources.  Under  conditions  just  referred  to,  the  available  sources  arc 
your  body,  your  children’s  bodies,  plants,  and  household  furnishings. 
Could  you  be  healthy,  robust,  strong,  and  vigorous  under  such  condi¬ 
tions?  Would  you  be  satisfied  to  have  a  system  installed  that  is  certain 
to  promote  such  conditions? 

Y ou  do  not  guess,  or  experiment,  when  your  choice  is  the  Round  Oak 
Moistair  Heating  System. 

As  will  be  proved,  this  system  delivers  not  only  pure,  warm,  ever- 
changing  air,  free  from  dust,  gas,  and  smoke,  but  an  abundance  of  life- 
giving  moisture  in  the  exact  quantities  required. 

Having,  in  a  general  way,  presented  the  claims  of  the  Round  Oak 
Moistair  Heating  System,  let  us  now  describe  in  detail  a  few  of  the 
more  prominent  features  entering  into  its  construction,  that  insure 
these  advantages  to  you.  You  are  sure  to  find  them  interesting  and 
conclusive  facts. 

Your  final  selection,  based  on  this  knowledge,  will  be  sound. 

You  will  know  just  what  to  look  for  and  demand  in  the  heating  sys¬ 
tem  you  choose. 

You  will  know  exactly  why  you  demand  these  certain  requisites. 


Will  These  Vital  Facts  Help  You  Reach  a  Favorable  Decision? 


Now,  let  us  begin  at  the  base, 
and  discuss  with  you  each 
part  of  the  system. 

Starting  with  the  foundation 
—  the  base  ring.  Not  only  is 
this  well  adapted  to  hold 
in  place  the  casing  or  metal 
jacket,  but  in  cases  where  the 
heater  is  placed  over  a  pit,  the  base  is  strong  enough  to  support  it. 
No  brick  pier  or  other  support  is  necessary,  as  is  the  case  with  other 
systems.  This  is  a  strong  feature,  as  a  pier  interferes  with  free  circulation 
of  air,  and  is  a  positive  detriment  to  theefficiencyofany  system— a  state¬ 
ment  you  can  easily  verify  upon  examination  of  any  other  system. 


The  next  factor  to  be  examined  is  the  ash  pit.  The  bottom,  sides,  and 
doorframe  are  cast  in  one  piece.  There  is  no  joint  around  the  doorframe. 
Notice  carefally  there  is  no  possibility  of  any  joint  opening  and  allow¬ 
ing  air  to  leak  in,  thus  losing  control  of  the  fire.  This  prevents  ash 
flecks  and  gas  leaking  into  the  casing  and  up  into  the  rooms. 

'  The  man  who  says  that  tak¬ 
ing  ashes  out  of  a  heater  is 
a  dirty  job,  does  not  own  a 
Round  Oak  Moistair  Heat¬ 
ing  System.  A  pipe  con¬ 
nection  is  a  part  of  every 
system,  and  runs  water  into 
this  one-piece  ash  pit,  en¬ 
abling  you  to  take  out  your 
ashes  as  coarse  and  dustless 
as  sand.  Again  the  evapo¬ 
ration  up  through  the  fuel  bed  will  materially  help  a  sluggish  flue  and 
dirty  fuel. 

Compare  this  construction  with  any  other  system.  Loss  of  fire  control, 
ash-laden  air  in  the  cellar  which  permeates  the  entire  house,  settling 
over  the  furniture  and  everything  else  —  abominations  and  loss  that  you 
simply  cannot  avoid  with  the  jointed  construction  in  other  heaters  — 


d^age  5 


Ash  Pit 
of  Other 
Heaters 
Showing 
Joints 


Tins 
joint 
opens 
and  lets 
ash 
flecks 
and  gas 
into  the 
rooms 


all  this  is  eliminated  forever  with  the  Round  Oak  Moistair  System. 


The  task  of  cleaning  out  this  system  is  not  a  dirty,  dusty,  mussy  job! 
It’s  absolutely  clean. 


The  next  item  — and  a  tremendously 
big  item  when  viewed  from  the  fuel¬ 
saving  standpoint— is  the Coal 
burns  a  great  deal  better,  deep  and  nar¬ 
row,  than  it  does  when  all  spread  out. 
For  that  reason  fire  pots  in  the  Round 
Oak  Moistair  Heating  Systems  average 
four  inches  deeper  than  the  fire  pots  in 
ordinary  furnaces. 


Bear  this  in  mind,  for  the  capacity  and  efficiency  of  a  heater  is  not  de- 


Howard  H.  Priestley,  Princeton,  III. 

"  I  feel  that  a  concern  that '  makes  good  goods  only  ’  de¬ 
serves  the  commendation  of  satisfied  users  of  the  product.  In 
1906  I  installed  in  my  house  a  Number  28  Round  Oak  Moist¬ 
air  Heater  and  it  has  heated  my  home  satisfactorily  and  econom¬ 
ically.  Satisfactorily  in  the  quality  of  warm  air  produced,  owing 
to  the  large  amount  of  water  evaporated  and  mixed  with  the  hot 
air,  and  thus  the  degree  of  humidity  is  raised  and  the  air  is  in¬ 
vigorated,  and  is  therefore  healthful. 

"  I  know  of  no  other  heating  system  or  any  kind  that  pro¬ 
duces  as  satisfactory  a  degree  of  humidity.  I  keep  my  ash  pit 
full  of  water  so  that  there  is  no  dust  in  the  cellar  when  ashes  are 
removed.  No  ash-dust  tracked  upstairs  to  annoy  the  family. 
You  can  emphasize  economy,  health,  convenience,  and  durabili¬ 
ty  of  your  heater.  Not  a  cent  have  I  spent  for  repairs.” 


termined  by  the  dia.metcr  of  the  fire  pot  alone.  (See  chapter  on  engi¬ 
neering,  page  4.) 

Hot-Blast  Ring.  Above  the  fire  pot  is  the  ring  hot  blast,  of  same  con¬ 
struction  as  the  one  that  has  been  a  tremendous  success  in  our  Round 

Oak  heating  stove.  The  air  is  taken 
in  at  the  sides  of  the  door,  heated 
as  it  travels  around  behind  the  sec¬ 
tions  of  hot  blast,  and  comes  out  of 
these  holes  in  the  hot-blast  linings, 
doing  in  a  more  efficient  manner 
the  same  work  as  the  heated  air  delivered  from  a  hot-blast  tube  in  what 
is  commonly  called  a  hot-blast  stove.  Only  people  who  have  not  made 
the  tests,  are  inclined  to  doubt  the  efficiency  of  hot-blast  construction. 

Our  experiments  show  that  the  hot 
blast  is  of  great  value,  and  we  have 
letters  from  users  who  have  burned 
soft  coal  a  whole  winter  without 
having  to  clean  the  flue. 

Combustion  Chamber— Over-size  to 
top.  One  of  the  basic  laws  of  heat¬ 
ing  demands  that  the  combustion 
chamber  instead  of  tapering  toward 
the  top  he  full-sized  to  the  top.  Thus 
is  built  the  combustion  chamber  of 
the  Round  Oak.  The  reason  for 
this  is  that,  after  your  fuel  is  con¬ 
verted  into  smoke,  flame,  and  gas, 
these  products  should  have  an  unrestricted  opportunity  to  radiate  their 
heat  into  the  casing,  and  deliver  it  into  the  rooms.  This  construction 
does  not  force  the  heat  out  of  the  chimney,  as  is  the  case  with  systems 
using  a  tapering  combustion  chamber. 

Note  also  that  this  chamber  is  constructed  of  copper-fused  boiler-iron. 
The  metal  is  an  active  radiator  of  heat,  and  on  account  of  its  thickness, 
chemical  properties,  and  physical  construction,  will  render  a  lifetime  of 
service. 

The  main  top  is  a  one-piece  casting.  No  leakage  of  gas  and  smoke  from 
joints.  No  need  of  resetting  the  system  after  a  few  seasons  of  service. 

A  good  example  of  the  Round  Oak  idea  of  permanency  in  air-tight  and 
gas-tight  construction,  is  illustrated  by  the  method  in  which  we  install 
the  direct  damper  in  the  one-piece  main  top.  Instead  of  having  damper 
a::le  run  right  through  the  dome  casting,  you  will  notice  that  one  end 


The  Main 


Direct-Draft 
I  )aniper  Socket 
Gas-Tight 

■< - 


'Rage  6 


Oiicr-Piece 
Seamless 
( '.isting 


of  the  damper  axle  runs  into  a  jointless  socket,  while  the  other  side  of 
damper  axle  runs  through  a  double  collar  of  asbestos  so  that  it  stays 
permanently  tight. 

The  two  descending  flues  and  the  one  ascending  flue, 
connecting  the  main  top  with  the  horseshoe  radiator, 
are  constructed  of  that  durable  copper-fused  boiler 
iron.  They  do  not  rust  out !  And  they,  together  with 
the  horseshoe  radiator,  afford  the  most  efficient  fire 
travel  of  any  heater  —  for  this  the  Round  Oak  Moist- 
air  Heating  System  is  famous.  These  flues  become 
active  radiators  of  heat  as  the  gases  are  drawn  down 
on  the  way  to  chimney  and  are  properly  proportioned 
to  secure  the  maximum  results. 

Note  that  they  are  fitted  to  the  main  top  and  horseshoe  radiator,  over 
a  tapering  slip  joint,  and  bolted  to  place.  No  leakage  of  gas  here. 

Note  also  they  are  acetylene-welded,  not  riveted.  They  form  a  fire 
travel  that  is  equivalent  to  one-piece  and  are  absolutely  gas-tight. 

The  reversible  cast  pipe  collar,  outside  the  casing,  is  one  of  the  Round 
Oak  features.  This  cannot  burn  off  and  can  be  adjusted  to  any  one  of 
four  directions  the  installation  may  demand. 


This  horseshoe  radiator  is  also  a  one-piece,  seamless  casting,  and  com¬ 
pletes  the  fire  travel  which  undoubtedly  is  the  most  effective  ever  built 
into  a  heating  system.  Note  the  two  large  and  convenient  clean  outs. 


The  feed  front  is  a  one-piece  casting  securely  riveted  to  the  combustion 
chamber.  The  casting  comes  right  through  the  front  of  heater,  and 
the  doorframes  are  a  part  of  the  one-piece  extension.  No  leakage  of  gas 
into  the  casing,  or  air  into  the  combustion  chamber  to  act  as  a  check. 

Compare  this  with  the  usual  front  to  which  the  doorframes  are  bolted 
—  this  latter  method  eventually  gases. 


mile  feed  doors  in  the  high  series  (the  high  series  is  illustrated  on  page 
12)  are  extra-large  and  commodious.  When  soft  coal  or  wood  is  used. 


the  size  of  these  doors  is  sure  to  be  appreciated. 


These  doors  are  ground  and  fitted 
to  the  seamless  cast  joint  — not 
against  a  bolted  doorframe, 
producing  a  gas-tight  joint. 
The  ash-pit  door  is  also 
ground  and  fitted  to  place 
against  the  one-piece  ash 
pit.  This  is  positive  assurance  of 
perfect  fire  control  for  life.  The 
main  front  is  carefully  and  strongly 
bolted  to  place. 


Coal  Grates 


Too  much  care  cannot  be 
exercised  in  examining  the 
grates  the  system  you  are 
going  to  select.  Note  the  tri¬ 
angular  grate  bars.  These 
are  really  a  three-in-one 
grate.  You  have  three  grate 
surfaces.  These  grates  rest 
in  a  heavy,  braced  frame, 
and  are  supported  in  the 
seamless  ash  pit  by  a  simple 
yet  effective  arrangement. 

See  page  5.  These  grates  naay  be  easily  and  quickly  removed  at  any 
time  by  simply  loosening  two  set  screws.  Compare  this  with  all  others. 
See  page  15. 

To  shake  the  grates,  an  opening  is  provided  in  ash-pit  door,  and  the 
special  shaker  always  leaves  the  grates  flat  against  the  fuel  after  clean- 


Wood  Grates 


E.  W.  Martin,  Fremont,  Nebr. 

"In  regard  to  your  inquiry,  I  want  to  say  that  the  Round  Oak 
Moistair  Heating  System  installed  in  my  house,  gives  perfect 
satisfaction.  It  does  all  you  promised  and  more.  Other  furnace 
men  of  this  city  claimed  my  house  an  exceedingly  hard  one  to 
heat  and  that  it  could  not  be  done  with  hot  air  alone.  I  am 
pleased  to  say  '  they  knew  not  whereof  they  spoke.’  The  man¬ 
ner  of  installing  and  workmanship  are  more  than  satisfactory.” 


‘d^agep 


ing  the  fire.  This  makes  the  grates  "  fool  proof.”  It  is  impossible  to 
remove  shaker  until  the  flat  surfaces  of  grates  support  the  fire. 

The  Automatic  Humidifier 


Remember,  a  certain  definite  percentage  of  moisture  in  the  air  delivered 
by  any  heating  system,  is  essential  to  health,  comfort,  and  fuel  economy. 
Read,  at  this  time,  the  important  and  interesting  proof,  on  the  inside 
of  the  front  and  back  covers. 

With  the  Round  Oak  Moistair  Heating  System,  this  desirable  per¬ 
centage  of  moisture  is  supplied  by  the  unusual  water  pan,  aided  by  the 
automatic  humidifier. 


Examine  closely  the  illustration  of  the  automatic  humidifier,  (which  is 
a  part  of  each  system)  and  you  will  clearly  see  how  this  ingenious  pat¬ 
ented  improvement  keeps  the  water  pan  full  at  all  times.  Then,  if  you 
will  turn  to  page  3,  you  will  notice  the  location  of  water  pan.  It  is  not 
placed  in  the  casing  or  at  the  side  of  the  ash  pit,  but  is  located  right  next 
and  conforms  to  the  fire  pot. 

Through  a  series  of  experi¬ 
ments,  the  exact  size,  shape, 
and  position  of  this  humidi¬ 
fying  apparatus  in  the  Round 
Oak  Moistair  Heating  Sys¬ 
tem,  have  been  determined. 

Its  scientific  principle  assures 
the  continuous  and  automat¬ 
ic  evaporation  of  a  most  satis¬ 
factory  percentage  of  mois¬ 
ture  into  the  ever-changing 
warm  air  circulated  by  this 
system.  The  hotter  the  fire, 
the  greater  the  evaporation. 

Consider  this  carefully  and, 
if  possible,  observe  it  in  actual 
operation,  and  you  will  see 
that  the  Round  Oak  Folks 
have  perfected  this  arrange¬ 
ment,  which  assures  you  not 
only  comfort  and  cheer,  but 
a  marked  saving  in  fuel. 

With  this  desirable  improve¬ 
ment,  your  home  will  be 
more  comfortable  and  more 
healthful  at  68  degrees,  than 
it  would  be  at  75  decrees  with 

O 

ordinary  heating  apparatus. 

Would  you  like  this  perfected 
improvement  in  the  heating  system  you  are  going  to  buy?  Then 
demand  it.  It  is  one  more  distinctive  feature  which  is  a  part  of  every 
Round  Oak  Moistair  Heating  System. 


A  man  in  Winnipeg  (name  on  request)  used  a  Round  Oak  Moistair 
Heating  System  for  a  winter,  and  was  surprised  to  find  that  the  house 
was  as  warm  as  he  wanted  it,  with  the  mercury  at  63  degrees,  when, 
with  the  furnace  he  had  used  for  a  number  of  years  previous,  he  had  to 
have  the  mercury  up  to  75  degrees  to  keep  his  family  comfortable. 

The  difference  was,  that  the  Round  Oak  Moistair  Heating  System 
was  evaporating  more  gallons  of  water  into  the  atmosphere  of  his  house 
than  the  other  heater  evaporated  pints,  and  63  degrees  of  humid  air 
feels  as  warm  as  75  degrees  of  dry  heat.  Probably  you  know  that  Ari¬ 
zona  frequendy  has  days  when  the  mercury  goes  up  to  115  degrees, 
and  people  do  not  suffer,  when  95  degrees  in  humid  New  York  keeps 
the  ambulance  busy  — it  is  but  one  more  proof  that  the  greater  the  hu¬ 
midity  in  your  home,  the  lower  the  temperature  required  for  comfort. 


Importance  of  Adjusting  and  Bracing 

Referring  to  illustration  on  page  13,  you  will  notice  the  lip  cast  on  the 
base  ring  which  holds  ash  pit  in  position.  This  prevents  ash  pit  slip¬ 
ping  forward  and  allowing  dust  and  ashes  to  enter  the  casing. 

You  will  also  notice  on  page  13,  that  two  large  lugs 
have  been  cast  on  the  asn  pit.  Through  these  lugs 
threaded  bolts  extend  and  rest  on  the  Base  ring.  By 
means  of  these  bolts,  the  heater  can  be  readily  lined 
up,  and  will  remain  so  indefinitely.  Compare  this 
method  with  the  usual  one  of  leveling  the  heater 
with  cement,  which  in  time  crumbles  and  drops  out, 
allowing  other  heaters  to  sag  —  then  gas. 

You  will  note  that  the  fire  pot  has  bolts  holding  fire 
pot  and  combustion  chamber  to  the  ash  pit.  When 
the  ordinary  furnace  has  the  slightest  explosion  in 
the  combustion  chamber,  it  is  necessary  to  repack 
the  joints  (very  expensive).  The  Round  Oak  stays 
tight.  The  dome  joint,  where  dome  or  main  top 
joins  the  boiler-iron  body,  is  a  wide  lap-joint,  and 
then  a  dovetail  which  is  packed  full  of  asbestos 
wicking  and  cement;  then  the  boiler  iron  is  bolted 
to  the  dome  and  the  joint  is  equivalent  to  a  one-piece  construction. 


C.  E.  Small,  Kansas  City,  Mo. 

''  I  put  in  one  of  your  Moistair  Heating  Systems  at  my  resi¬ 
dence,  southeast  corner  36th  and  Holmes  Streets,  in  the  summer 
of  1906  I  used  it  with  coal  until  natural  gas  was  turned  on,  and 
since  then,  with  natural  gas.  It  works  with  both  fuels  to  perfec¬ 
tion.  I  cannot  commend  it  too  highly.” 

E.  H.  Carrier,  Harrisonburg,  Va. 

"  I  have  used  a  Round  Oak  Moistair  Heating  System,  No. 
26,  for  seven  years.  It  is  all  anyone  could  wish  for.  It  heats  as 
well  as  any  furnace  could,  and  it  is  very  economical  with  fuel. 
It  takes  about  eight  tons  of  soft  coal  a  winter.  This  heats  seven- 
room  house  with  bath  and  reception  hall. 

"If  I  were  in  need  of  another  one,  it  would  be  a  Round  Oak.  ” 

Win.  Bissett,  Springfield,  Mo. 


"  I  have  used  a  Round  Oak  Moistair  Heating  System  since 
190J,  and  it  has  not  cost  me  a  cent  for  repairs.  For  fuel  I  use  coal 
and  wood  mixed.  I  unhesitatingly  recommend  the  Round  Oak.” 


I^age  .S’ 


The  Casing 

There  are  still  a  few  folks,  who  believe  in  the  brick-set  heater.  They 
have  not  considered  the  excessive  cost  of  construction,  or  that  brick 
absorbs  an  excessive  amount  of  heat  and  moisture,  and  at  the  same 
time  retards  the  flow  of  air  because  of  the  rough  surface. 

The  three-ply  casing,  used  in  the  Round  Oak  Moistair  Heating 
System,  secures  ideal  results.  The  inner  wall  of  bright  corrugated  tin 
allows  a  free  passage  of  the  heated  and  humidified  air,  also  bright  sur¬ 
faces  deflect  the  heat  rather  than  absorb  it. 

Then  comes  the  insulation  wall,  which  prevents  the  radiation  of  the 
heat  into  the  basement. 


fuel  to  pay,  in  time,  even  the  amount  of  your  entire  investment,  as 
represented  in  its  purchase. 

That  this  system  guarantees  comfort,  helps  safeguard  health,  and  ren¬ 
ders  more  than  a  generation  of  supreme  service. 

Then  determine  that  this  system  and  no  other  shall  be  your  selection. 

Thus  will  you  capitalize  your  best  business  judgment. 

Thus,  and  only  thus,  can  you  enjoy  the  permanent  satisfaction  which 
is  derived  from  the  knowledge  that  you  have  made  a  good,  sound,  per¬ 
manent  business  investment,  and  that  in  addition  you  and  yours  will 
every  year  clip  those  invaluable  dividend  coupons,  comfort,  health, 
vitality,  and  good  cheer.  Now  use  the  free  help  blank  in  back  of  this  book. 


The  outer  wall  of  heavy  galvanized  iron  protects  and  completes  casing. 

The  method  of  attaching  the  casing,  of  building  the  deflector  or  hood, 
of  covering  the  pipes,  and  arranging  the  different  runs,  all  have  their 
important  bearing  on  the  efficiency  of  your  installation.  All  are  cared 
for  in  the  scientific  plans  supplied  free  by  the  Round  Oak  Engineering 
Department. 

Round  Oak  heating  engineers  know  — they  do  not  guess.  Now  you 
have  a  practical,  comprehensive  idea  of  how  your  heating  plant  should 
be  constructed;  but  not  even  yet  do  we  ask  you  to  decide  that  this  shall 
be  the  heating  system  of  your  ultimate  choice. 

The  Final  Analysis 

When  you  have  substantiated  each  of  the  foregoing  statements  from 
the  heater  itself  then  the  greater  durability,  economy,  cleanliness,  con¬ 
venience,  health,  and  sanitation  of  the  Round  Oak  Moistair  Heating 
System  will  have  been  proved  to  your  entire  satisfaction. 

You  will  know  that  only  clear,  hard  facts  have  been  presented  and 

Every  angle  of  comfort,  health,  and  fuel  economy  has  been  anticipated 
and  provided  for. 

The  installation,  under  the  direction  of  the  Round  Oak  Engineering 
Department,  assures  the  most  modern,  efficient,  and  healthful  method 
of  home  warming.  Your  particular  problem  now  awaits  an  intelligent 
solution. 

Let  Us  Furnish  You  with  a  Heating 

Plan  Free! 

Without  any  obligation  on  your  part,  we  invite  you  to  utilize  the  serv¬ 
ice  rendered  all  Round  Oak  friends  and  customers  by  our  Department 
of  Heating  Engineers. 

Without  obligation,  let  these  heating  experts  furnish  you  with  a  heat¬ 
ing  plan  free.  This  we  gladly  furnish  you,  and  with  it  the  cost  of  the' 
j  OD  complete,  including  heating  system  and  installation.  T o  get  this 
plan,  all  you  need  do  is  answer  the  questions  and  send  us  a  sketch  of 
your  floor  space  as  provided  in  the  sketch  blank  in  the  back  of  this 
book  —  a  task  easy  enough  considering  the  sample  sketch  shown  in  the 
sketch  blank.  Remember,  this  helpful  service  is  free  — costing  you  not 
one  penny  —  putting  you  under  no  obligation  to  us  or  to  anyone  else. 

Finally,  let  us  impress  upon  you  this  fact:  The  comfort,  durability, 
and  efficiency  of  your  heating  equipment,  depend  upon  its  foundation — 
upon  the  heating  system  itself 

Realize  once  and  for  all  — 

That  this  system  increases  the  value  of  your  property  more  than  the 
amount  invested. 

That  this  system,  because  of  increased  fire  travel,  radiating  surface, 
and  control,  as  compared  to  other  systems,  will  actually  save  enough 


Fred  Livingston,  Sayre,  Okla. 


"  Replying  to  your  kind  letter  of  the  6th  instant  —  to  say 
that  I  am  pleased  with  the  No.  24  Round  Oak  Moistair  Heater, 
installed  in  my  residence  in  the  summer  of  1915,  would  not  be¬ 
gin  to  express  my  appreciation  of  this  modern  method  of  heating. 

"  In  the  first  place,  the  elimination  of  dust,  dirt,  and  smoke 
from  the  living-rooms,  is  in  itself  enough  to  justify  the  installa¬ 
tion  of  a  plant  of  this  kind,  not  to  mention  the  comfort  derived 
from  the  humid  atmosphere  which  the  Round  Oak  Moistair 
Heater  creates  in  your  home. 

"  Now,  remember,  this  is  a  very  difficult  country  in  which 
to  heat  a  house  by  any  means;  because,  when  it  is  cold,  we  us¬ 
ually  have  very  high  winds,  and,  there  being  no  windbreaks, 
such  as  trees,  hills,  etc.,  it  takes  an  unusually  large  amount  of 
fuel— much  more  than  in  a  section  where  there  is  some  timber  to 
break  the  force  of  the  wind.  We  burn  slack,  and  it  costs  about 
^5.00  a  ton.  By  wetting  this,  we  get  excellent  results  Our  fuel 
bill  last  winter  was  ^42.00. 

"  I  never  tire  of  talking  Moistair  Heater  to  my  friends.  At 
any  time  that  I  can  be  of  service,  command.” 

P.  W.  Scliock,  Blue  Springs,  Nebr. 

"I  have  used  one  of  your  Round  Oak  Moistair  Heating 
Systems  for  fourteen  years,  and  am  satisfied  with  it  in  every  par¬ 
ticular.  Have  never  had  to  replace  any  grates  and  the  heater  is 
in  fine  condition  to-day ;  nor  have  I  replaced  any  of  the  fire  box, 
and  have  never  been  bothered  with  any  smoke,  dust,  or  gas. 
Could  recommend  it  to  anybody  in  need  of  a  heater.” 

August  Rasmas,  Conrad,  la. 

''I  am  pleased  with  the  Round  Oak  Moistair  Heating 
System  bought  of  your  agent.  It  is  a  powerful  heater,  a  great 


^age  9 


Round  Oak  Moistair  Combination 

Heater 

Round  Oak  Moistair  Combination  Heater  provides  pure,  warm,  moist, 
ever-changing  air  and  hot-water  heat. 

This  combination,  as  illustrated  on  opposite  page,  solves  the  problem 
of  heating  isolated  rooms  impossible  or  inconvenient  to  reach  with 
warm-air  methods.  It  is  a  tried  and  proved  success. 


no  equal.  It  can  be  easily  attached,  and  has  a  capacity  of  60  gallons  to 
250  gallons  per  hour.  For  ordinary  domestic  use,  the  water  back  has 
ample  capacity.  Should  your  particular  case  require  a  combination  sys¬ 
tem,  full  and  complete  details  will  be  given  free,  by  the  Round  Oak 
Engineering  Department  on  receipt  of  blue  print  or  sketch. 

Round  Oak  Heater  with  Natural- 

Gas  Ring 


Combination  Systems 

The  Round  Oak  Heater  in  combination  with  hot-water  heater  or  water 
back,  according  to  conditions,  is  designed  for  the  purpose  of  heating 
water,  either  for  circulation  through  radiators,  in  order  to  heat  isolated 
rooms,  or  for  heating  water  in  a  tank  for  domestic  use. 

It  is  so  constructed  that  it  does  not  lessen  the  size  of  the  fuel-door 
openings,  or  diminish  the  capacity  of  the  fire  pot,  consequently  com¬ 
bustion  is  in  no  way  retarded,  and  a  Round  Oak  Moistair  Heating 
System,  supplied  with  the  combination,  is  not  only  efficient  as  a  dis¬ 
penser  of  warm  air,  but  has  the  added  value  of  a  high-class  water  heater 
at  the  same  time. 

The  use  of  a  hot-water  combination  in  a  heater  is  sometimes  necessary, 
when  certain  rooms  are  situated  so  far  from  the  heater  that  warm  air 
cannot  be  successfully  carried  the  required  distance.  Wherever  such 
conditions  exist,  it  is  well  to  place  in  the  heater  our  hot-water  combin¬ 
ation,  and  heat  the  room  or  rooms  thus  remote  by  hot-water  circula¬ 
tion.  One  or  more  radiators  located  in  the  apartments  to  be  heated 
will,  when  properly  placed,  do  the  work  required,  quickly  and  well. 


The  Round  Oak  Combination  Heater  is  the  result  of  much  study  and 
experiment,  and  is  in  keeping  with  the  high  grade  of  heating  apparatus 
produced  by  the  Round  Oak  Folks.  This  combination  is  constructed 
with  the  idea  of  adjustment  to  the  work  required  of  it,  as  it  will  heat 
from  one  to  four  rooms  of  ordinary  size,  and  its  cost  varies  with  the 
number  of  rooms  to  be  heated. 

For  heating  water  in  large  tanks  for  domestic  purposes,  this  heater  has 


IVhat  Others  Say 


"In  reply  to  yours  of  recent  date  will  say  that  I  have  had 
fine  success  with  the  Round  Oak  Moistair  Heating  System  pur¬ 
chased  of  you.  This  winter  I  heated  eight  rooms  with  a  steady 
even  heat  with  less  expense  than  previous  winters  trying  to  heat 
three  rooms  with  a  base  burner. 

"The  work  of  your  furnace  men  is  the  very  best,  and  I  am 
entirely  satisfied  with  the  Round  Oak  Moistair  Heating  Sys¬ 
tem  and  the  way  you  installed  it.” 


Owing  to  its  principle  of  construction,  the  Round  Oak  Moistair  Heat¬ 
ing  System  is  a  most  powerful  radiator  of  heat  from  a  very  economical 
amount  of  natural  gas. 


Thus  equipped,  the  Round  Oak  Heater  will  burn,  in  addition  to  gas, 
hard  or  soft  coal,  coke,  and  wood,  without  any  change  whatsoever. 


making  it  the  most  desirable  and  adaptable  construction  of  its  kind, 
especially  when  natural  gas  fails  —  usually  in  severest  weather  of  winter. 
When  natural  gas  is  the  fuel,  shaker  holes  in  the  ash-pit  door  must  be 
left  open. 

THE  BECKWITH  COMPANY 


Oak  Folks  Dowagiac,  Mich. 


Weights  and  Dimensions  of  Regular  Series 


No. 

Shipping 

Weight 

Heater 

and 

Casing 

Weight 

of 

Heater 

Only 

Lbs. 

Height 

of 

Castings 
Ft.  In. 

Diam. 

of 

F're 

Pot 

Depth 

of 

Fire 

Pot 

Diam. 

of 

Casing 

Height 

of 

Casing 
Ft.  In. 

Height 
to  Cone 
Top 

Inches 

Diam. 

of 

Smoke 

Pipe 

IiK'hes 

44 

1490  lbs. 

1370 

4 

lOj 

18  in. 

14  in. 

43 1  in. 

6 

1 

55J 

8 

48 

1815  lbs. 

1685 

5 

0 

20  in. 

15  in. 

48  in. 

6 

2 

57 

9 

51 

2080  lbs. 

1940 

5 

22  in. 

16  in. 

51  in. 

6 

n 

58^ 

9 

54 

23501bs. 

2185 

5 

4 

24  in. 

1 8  in. 

54  in. 

6 

5 

60J 

9 

60 

2665  lbs. 

2510 

5 

26  in. 

18j  in. 

60  in. 

6 

8 

63i 

10 

65 

3000  lbs. 

2830 

5 

7 

28  in. 

19  in. 

65  in. 

6 

8 

63i 

10 

Weights  and  Dimensions  of  Low  Series 


No. 

Shipping 

Weight 

Heater 

and 

Casing 

W  eight 
of 

Heater 

Only 

Lbs. 

Height 

of 

Castings 
Ft.  In. 

Diam. 

of 

Fire 

Pot 

Depth 

of 

Fire 

Pot 

Diam. 

of 

Casing 

Height 

of 

Casing 

Ft.  In. 

Height 
to  Cone 
Top 

Inches 

Diam. 

of 

Smoke 

Pipe 

Inches 

440 

1440  lbs. 

1325 

4 

18  in. 

14  in. 

43i  in. 

5  6 

ni 

8 

480 

1760  lbs. 

1640 

4 

4 

20  in. 

15  in. 

48  in. 

5  7 

5oi 

9 

510 

2000lbs. 

1870 

4 

5 

22  in. 

16  in. 

51  in. 

5  8 

5U 

9 

540 

2200lbs. 

2125 

4 

Sh 

24  in. 

1 8  in. 

54  in. 

5  10 

53^ 

9 

600 

25901bs. 

2460 

4 

H 

26  in. 

18  J  in. 

60  in. 

6  li 

56i 

10 

650 

2875  lbs. 

2730 

5 

0 

28  in. 

19  in. 

65  in. 

6  \\ 

56* 

10 

Page  lo 


Showing  side  view  of  Round  Oak  regular  series  with  combination  hot-water  heater  in  position.  Note  that  the  addition 
of  this  hot-water  attachment  does  not  interfere  with  the  successful  operation  of  this  heater 

For  details  see  opposite  page 


‘T’age  II 


Round  Oak  Moistair  Heating  System 

Regular  Series  Front  View 

Built  like  a  battleship  — fitted  like  a  watch.  Burns  hard  and  soft  coal,  coke,  wood,  and  natural  gas 

A  finished  product,  complete  in  every  detail 


'T^age  12 


Round  Oak  Moistair  Heating  System 

Regular  Series  Side  View 


Burns  coal,  coke,  wood,  and  natural  gas.  Illustration  shows  arrangement  of  return  flues,  and  cast  horseshoe  radiator, 
with  clean-out  doors;  also  check  draft  on  smoke  pipe,  and  water  pan.  Note  single-piece  castings.  No  leakage 
of  smoke,  gas,  or  dust  possible.  See  how  quickly  and  easily  the  Round  Oak  can  be  cleaned 


‘'Page  ij 


SINGLE 


SINGLE  PIECE 


CASTING 


Dust  PROOF 
Jointless  Ash  Pit 
Holds  Water 


CASTING 


Round  Oak  Moistair  Heating  System 

Low  Series  Side  View 

Burns  coal,  coke,  wood,  and  natural  gas.  Illustration  shows  arrangement  of  return  flues,  and  cast  horseshoe  radiator, 
with  clean-out  doors;  also  check  draft  on  smoke  pipe,  and  water  pan.  Note  single-piece  castings.  No  leakage 
of  smoke,  gas,  or  dust  possible.  See  how  quickly  and  easily  the  Round  Oak  can  be  cleaned 

Go  over  every  detail  carefully.  Mentally  test  every  point,  then  verify  them  from  the  heater  itself 


14 


Illustration  shows  the  hot  blast,  also  the  grates  part  way  out.  In  case  of  abuse,  note  how  easily  grates  could  be 
removed.  Cutaway  section  shows  clearly  the  three-wall  construction  used  in  building  the  casing.  The  extra- 
large  feed-doors,  convenient  location  of  the  water  pan,  or  humidifier,  and  extra-large 

one-piece  ash  pit,  are  again  emphasized 


^Page 


Sectional  view  of  a  home,  showing  a  standard  installation  of  the  Round  Oak  Moistair  Heating  System.  Healthfully 
heats  every  room  with  pure,  warm,  ever-changing  air,  free  from  dust,  gas,  and  smoke— properly  humidified 


A.  F.  Kingsley,  M.  D.,  Battle  Creek,  Mich. 

"  I  am  pleased  to  say  hat  the  No.  26  Round  Oak  Heater 
installed  in  my  residence  six  years  ago  has  given  me  perfect  satis¬ 
faction  in  every  way.  Since  its  installation  I  have  added  three 
rooms  to  the  residence,  all  of  which  are  heated,  and  I  still  have 
sufficient  heating  capacity  to  keep  the  house  comfortable  under  all 
conditions  of  'weather.  The  furnace  is  very  economical  as  to  fuel 
consumption  and  does  equally  well  with  every  variety  of  fuel 
available.  I  might  add  that  I  have  burned  wood,  soft  coal,  hard 
coal,  gas,  and  Solvay  coke.  The  evaporating  system  is  excellent 
and  I  am  able  to  get  a  satisfactory  humidity  in  my  living  rooms 
at  all  times. 

"The  installation  was  done  by  your  local  representatives, 
Shouldice  Bros.,  and  has  proved  very  efficient  in  every  way. 

"Were  I  to  install  another  heating  apparatus,  I  would  not 
know  where  to  look  for  a  better  plant  than  the  Round  Oak.” 


‘-Page  16 


Data  for  Moistair  Heating  Estimate 

Owner’s  name - City _ R.  F.  D _ State _ 

Dealer’s  name - - - - , _ City _ ^tate _ _ 

Give  outside  dimensions  of  the  building _ ! _ _ _ _ 

What  is  the  estimated  value  of  the  building? - Is  the  building  complete  or  under  construction? _  _ 

What  direction  does  it  face? - Of  what  material  is  it  constructed?  (Frame,  brick,  stone,  hollow  tile,  or  cement 

block) - Docs  this  building  stand  alone  out  in  the  open,  or  is  it  protected  by  other  buildings? _ 

Do  you  use  storm  doors,  or  windows? _  _ .Does  cellar  extend  under  entire  building? _ 

If  not  where  is  it  located? - - - Give  inside  dimensions  of  furnace  chimney  flue _  _ 

Is  stairway  to  second  floor  open  or  closed? _ Show  location  on  plan 

What  kind  of  fuel  will  be  used? _ 

Depth  of  basement  below  floor  where  furnace  will  be  placed _ 

Remarks _ 


Answer  every  question  above  if  for  a  residence;  and  additional  questions  below  if  for  public”‘“^H 
buildings.  It  is  not  advisable  to  guess  at  the  information  needed  when  the  future  comfort  of  your 
family  is  in  question.  Inform  us  fully  and  correctly  and  we  can  assure  you  an  efficient  heating  system. 

Additional  Information  Required  for  Church,  Store,  School,  Public  Building,  Etc. 

Are  floors  level  or  inclined? _ Is  ceiling  flat  or  arched? _ If  arched,  give  heights  at  center 

_ feeL _ inches.  At  sides _ feet _ inches 

State  whether  ceiling  is  plastered,  finished  in  wood  or  steel _ 

Is  there  a  gallery  or  balcony  projecting  over  the  main  or  first  floor? _ Plaster  on  walls  or  on  furring? - 

* 

Are  walls  double  or  single? _ _ Show  on  sketch,  location  of  aisles  and  platform  or  pulpit. 

Is  basement  to  be  heated? _ If  so,  designate  on  sketch  its  size,  height,  finish,  and  seating  arrangement. 

Remarks _ 


Mail  to 

The  Beckwith  Company,  Dowagiac,  Michigan 

Engineering  Department 


Read  Carefully — Directioi 


When  blue  printed  plans  are  not  available,  sketch  an  outline  of  the  floor  plans  of  the  building 
to  be  heated,  with  either  pen  or  pencil.  When  drawing  your  plans,  no  allowance  should  be  made 
for  thickness  of  partitions.  Give  exact  inside  dimensions  of  each  room  on  sketch  along  wall 
measured.  In  making  your  plans,  pay  no  attention  to  dimensions  less  than  one  foot.  Show  loca¬ 


tion  of  outside  doors  and  windows,  inside  dotiypi 
are  not  to  be  heated.  Give  name  of  each  roon 
floor  and  basement.  Show  the  positions  occu 
beams,  and  any  other  construction  in  the  buil 


BASEMENT — Height . _.feet, . __-_inches  FIRST  FLOOR — Heignt 


1  i  !  t  .1 


ANSWER  ALL 


a.s 


for  Using  Sketch  Blank 


j  itions,  halls  and  closets,  even  though  these 
<  tck  Indicate  the  direction  of  stairs  on  each 
b  chimneys,  fireplaces,  piers,  large  supporting 
'  at  may  interfere  with  the  installation  of  the 


Round  Oak  Moistair  Heating  System. 

If  the  building  is  a  store,  indicate  the  location  of  counters  and  show  cases. 

If  the  building  is  a  church,  theatre,  or  school,  indicate  the  aisles,  seating  arrangement,  platform 
or  pulpit. 


feet,  . . inches  SECOND  FLOOR — Height _ feet, _ inches 


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JE51IONS  ON  PAGE  1 


Free  Engineering  Service 


Every  member  of  our  Engineering  Department  has  had  years  of  practical  experie.. 
By  sending  us  your  floor  plans, ^  you  will  get  the  benefit  of  this  experience  in  solv| 
your  heating  problems.  There  is  no  charge  for  this  service  nor  does  it  obligate  you 
any  manner. 


How  your  sketch  should  appear 


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Mail  to  The  Beckwith  Company,  Dowagiac,  Mich. 


60,000  Round  Oak  Moistair  Heating  Systems  Have  Been  Sold 

Into  Satisfaction 

In  addition  to  showing  elsewhere  many  of  the  beautiful  homes,  where  Round  Oak  Moistair  Heaters  are  used,  below 
we  reproduce  a  few  letters  picked  at  random  from  the  thousands  of  users  of  this  system.  Read  them. 


Downers  Grove,  III,,  Nov.  1,  1915. 
The  Beck\dth  Company,  Dowagiac,  Mich. 

Gentlemen:  You  may  recall  I  purchased  one  of  your 
No.  26  Moistair  Heaters. 

I  am  writing  without  any  solicitation,  simply  because  I 
feel  it  my  duty  in  this  life  to  be  grateful  for  the  good  for¬ 
tunes  that  come  to  me.  As  you  may  remember,  I  was  some¬ 
what  reluctant,  a  year  ago,  to  install  a  hot-air  furnace;  I 
rather  favored  the  system  of  hot-water  heat. 

After  one  year’s  trial  of  your  Moistair  System,  however, 
I  am  prepared  to  say  that  I  am  very  thankful  that  I  did  not 
install  the  hot-water  system.  We  heated  our  house  comfort¬ 
ably  all  last  winter  with  your  heater,  on  only  four  and  one- 
half  tons  of  hard  coal,  and  you  know,  of  course,  that  the 
thermometer  went  as  far  as  20  degrees  below,  last  winter. 
Our  house  is  of  the  bungalow  type  with  six  rooms,  and  there¬ 
fore  not  the  easiest  to  heat.  I  cannot  say  too  much  in  praise 
of  your  heating  system.  I  defied  any^xxly  in  my  community 
to  show  a  record  equal  to  mine,  and  not  one  of  them  could 
compare  with  it. 

Nevertheless,  the  economic  saving  is  not  my  real  reason 
for  beit^  so  well  satisfied.  For  the  first  winter  in  our  fifteen 
years  ormarried  life  not  one  of  us  had  a  cold.  I  believe  that 
this  was  due  to  your  perfect  system  of  ventilation  and  of 


humidifying  the  atmosphere  of  the  rooms.  ’We  notice,  too, 
that  our  ftjmiture  was  not  affected  as  n.^nal  by  cracking,  etc. 

You  may  be  surprised  to  get  this  letter,  since  you  have 
not  asked  for  it,  and,  strange  to  say,  if  you  had  asked  for  it, 
I  might  have  been  too  stubborn  to  have  granted  your  request. 
However,  you  may  make  any  use  of  this  testimony  that  you 
care  to,  for  the  reason  that  I  believe  it  is  well  merited. 
I  have  no  axes  to  grind  other  than  when  I  build  again,  I  will 
certainly  install  a  Round  Oak  Moistair  System. 

Yours  very  respectfully, 

F  J.  MILNES. 

Fremont,  Neb.,  May  14, 1914. 
Thomas  fli  Courtright  Hdw.  Co.,  City. 

Gentlemen:  In  regard  to  your  inquiry,  I  want  to  say  that 
the  Round  Oak  Moistair  Heating  System  installed  in  my 
new  house,  gives  perfect  satisfaction.  It  does  all  you  prom¬ 
ised  and  even  more.  Other  furnace  men  of  this  city  claimed 
my  house  an  exceedingly  hard  one  to  heat  and  that  it  could  not 
be  done  with  hot  air  alone.  I  am  pleased  to  say  "  they  knew  not 
whereof  they  spioke.”  The  manner  of  installing  and  work¬ 
manship  are  more  than  satisfactory. 

Yours  respectfully, 

E.  W  MARTIN. 


I 


::::::::::::::::::: 


Proper  Humidity,  Fresh  Air,  and  Health 

By  Prof.  W.  E.  Watt,  Graham  School,  Chicago,  Illinois 

( From  an  address  delivered  before  the  Midland  Club ) 

Prof.  Watt  spoke  in  part  as  follows,  using  the  remarkably  favorable  results  obtained  in  his  own  school 
to  illustrate  and  prove  the  great  value  and  absolute  necessity  of  fresh  air  and  proper  humidity. 


"  Mr.  President  and  Gentlemen : 

"  Hot,  dry  air  at  72  degrees  in  a  room,  may  cause  to  the  occupant 
a  chilly,  uncomfortable  feeling,  while  the  same  room  at  a  temperature 
of  62  degrees,  with  proper  humidity  and  plenty  of  fresh  air,  will  be 
pleasanter  and  more  healthful ;  besides,  there  is  fuel  economy. 

"People  shut  themselves  up  in  steam-heated  flats,  and  it  makes 
them  nervous  and  irritable.  One  of  the  most  common  results  from 
steam-heated  apartments  is  nasal  catarrh. 

"  Did  you  ever  notice  how  the  wood  in  your  piano  will  shrink,  and 
sometimes  the  instrument  will  even  come  apart  and  often  be  ruined? 
Do  you  know  it  is  because  the  air  in  the  room  is  dryer  than  the  kiln  in 
which  the  lumber  used  in  the  construction  of  yopr  piano  was  dried,  and 
that  is  pretty  dry— it  is  dryer  than  the  Desert  of  Sahara?  When  a  man 
complains  of  being  all  run  down,  and  possibly  lays  the  cause  of  his  ill 
health  to  past  excesses,  he  often  seizes  upon  the  wrong  cause  of  his  ill¬ 
ness,  and  is  simply  'steam-heated.’  All  he  needs  is  fresh  air  and  plenty 


of  it.  What  he  has  done  was  probably  not  enough  to  hurt  the  consti¬ 
tution  of  a  rat,  if  he  had  always  received  the  proper  amount  of  fresh 


air. 


"  Monkeys  confined  in  our  zoos,  in  the  hot,  close  quarters  usually 
provided  for  them  during  cold  weather,  die  from  only  two  causes,  either 
from  accident,  that  is,  they  sometimes  kill  each  other,  or  from  tubercu¬ 
losis. 

"A  short  time  ago  Dr.  Evans,  health  commissioner  of  Chicago, 
investigated  this  matter,  and  concluded  what  these  animals  needed  to 
preserve  life  was  fresh  air  the  year  round,  and  at  his  suggestion,  but 
with  considerable  misgivings,  the  hot,  steam-heated,  poorly-ventilated 
winter  quarters  were  abandoned,  and  since  this  change  they  are  no  long¬ 
er  dying  from  consumption. 

"You  would  die  if  shut  up  in  the  same  manner,  but  you  have  an 
advantage  over  the  poor  monkeys,  for  after  standing  it  as  long  as  you 
can,  you  then  go  out  and  revive  yourself  with  fresh  air.” 


The  experiments  of  our  engineering  department  bear  evidence  to  the  testimony  of  Prof.  Watt.  With 
the  Round  Oak  Moistair  Heating  System  installed  the  Round  Oak  way,  you  are  certain  of  an  abun¬ 
dance  of  -warm,  moist,  ever-changing  air,  free  from  dust,  smoke,  and  thus  safeguarding  health,  vitality, 

and  comfort. 


Your  favorable  decision  to  have  a  ‘^Rpund  Oak  Moistair 
Heating  System  'will  pay  you  a  lifetime  of  dividends 


More  Letters  of  Commendation 


Winnipeg,  Can.,  Jan.  9, 

J.  C.  Wilson,  155  Lombard  Street, 

Winnipeg,  Canada. 

Dear  Sir ;  I  had  you  put  a  Round  Oak  Moistair  Heating  System 
in  my  new  house  in  the  fall  of  1914,  having  had  the  layout  made  in  my 
office.  It  was  arranged  that  all  rooms  would  have  not  less  than  six 
air  changes  an  hour,  and  that  all  rooms  have  cold-  and  hot-air  ducts  of 
equal  size,  and  in  proportion  to  the  heat  loss  of  these  rooms. 

The  heater  is  placed  in  the  center  of  the  basement  over  a  brick  pit ; 
the  cold-air  ducts,  five  in  number,  connect  with  this  pit,  and  the  pit  is 
drained  to  the  catch  basin. 

The  house  is  bungalow  design  32  feet  square,  with  no  building 
closer  than  200  feet,  at  present. 

The  heater  is  listed  as  a  No.  26,  and  I  chose  this  as  being  40  per 
cent,  larger  than  ordinarily  used  in  eastern  cities. 

From  January,  1915,  to  January,  1917,!  have  used  1 3  %  tons  of  fuel. 
Outside  and  inside  temperature  varied  no  degrees.  I  always  had  50 
per  cent,  to  60  per  cent,  humidity  when  70  degrees,  and  returning  air 
usually  65  degrees,  speed  about  140  feet  a  minute,  all  rooms  well  heated, 
and  the  cellar  not  over  52  degrees  at  any  time.  There  is  no  covering  on 
the  body  of  the  heater  or  pipes.  I  find  the  water  pan,  which  holds  about 
four  gallons,  boils  out  at  the  rate  of  one  inch  an  hour,  and  it  is  filled 
three  or  four  times  a  day— in  fact,  it  is  given  more  attention  than  the 
fire. 

In  cold  weather  I  keep  the  fire  pot  filled  up  to  the  hot-blast  linings. 
I  leave  the  small  holes  open  when  the  weather  is  cold,  with  the  check 


up,  and  the  ash-pit  draft  open  inch.  A  12  hours’  run  will  burn  40 
to  60  pounds  of  fuel,  and  keep  an  even  temperature  when  40  degrees 
below  outside.  When  the  weather  is  mild,  and  at  night,  I  leave  the  fuel 
door  open  1 inches. 

In  mild  weather  (that  is  zero),  I  have  the  fire  pot  only  one-half  full, 
and  the  ash-pit  door  closed. 

Having  had  many  years’  experience  with  different  makes  of  fur¬ 
naces,  in  rented  houses,  I  purchased  this  Round  Oak  Moistair  Heater  on 
account  of  its  weight  and  workmanship.  I  am  pleased  to  say  my  judg¬ 
ment  has  proved  good. 

I  wish  to  make  it  clear  that  this  house  has  32  windows  and  five  out¬ 
side  doors;  all  are  as  tight  as  it  is  practicable  to  make  them,  and  the 
house,  though  built  of  wood,  has  three  distinct  layers  of  paper  inch 
thick,  and  ship-lap,  wood  strapped  and  plastered. 

We  have  weather  that  will  thoroughly  test  these  conditions,  and  I 
have  found  this  house  O.  K.  in  the  coldest  days. 

The  fires  are  started  Sept.  1 5,  and  allowed  to  go  out  May  15. 

Consulting  Yours  truly. 

Mechanical  and  Marine  •j'  ROBERTS 

Engineer. 

H.  E.  Hotchkiss,  Courtland,  Ala.,  says: 

"  I  have  used  several  kinds  of  furnaces,  but  for  efficiency,  economy, 
and  ease  of  regulation,  your  Round  Oak  Moistair  Heating  System  is 
the  best  of  all.  It  certainly  deserves  a  great  sale.” 


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